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Finding the Fourth Proportional to 36,621, 54,898.92 and 13,242.24

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Solution

The fourth proportional to 36,621, 54,898.92 and 13,242.24 is: 19,851.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,621 : 54,898.92 = 13,242.24 : x
  2. Step 2: Convert to fraction form
    36,621/54,898.92 = 13,242.24/x
  3. Step 3: Cross multiply
    36,621x = 54,898.92 × 13,242.24
  4. Step 4: Simplify right side
    36,621x = 726,984,674.38
  5. Step 5: Solve for x
    x = 726,984,674.38/36,621
  6. Step 6: Final answer
    x = 19,851.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.